梅蓄电站闸门井不同开挖方法下经济与适用性研究  

Economic and Applicability Study of Gate Shaft of Mei Battery Station under Different Excavation Methods

作　　者：何毅 李东卫 HE Yi;LI Dong-wei(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]中国水利水电第十四工程局有限公司,云南昆明650041

出　　处：《云南水力发电》2021年第10期128-134,共7页Yunnan Water Power

摘　　要：广东梅州抽水蓄能电站一期上、下库闸门井井深62.872m和59.404m,开挖断面均为7.9m×13.6m矩形。总结竖井开挖的一般方法,对比分析了大断面浅竖井开挖中一次扩挖法和二次扩挖法这两种方法的异同,通过对梅蓄上、下库闸门井开挖方法的针对性剖析,总结了浅竖井开挖中两种方法的优势与不足,且建议选择全断面一次扩控法,以保证工期和节约成本。In Phase I of Meizhou Pumped Storage Power Station,the depth of the upper and lower reservoir gate wells is 62.872m and 59.404m,and the excavation section is 7.9m×13.6m rectangular.This paper summarizes the general methods of shaft excavation,compares and analyses the similarities and differences between the primary expansion method and the secondary expansion method in shallow shaft excavation of large section.Through pertinent analysis of excavation methods for upper and lower reservoir gate shafts of Meizhou Pumped Storage Power Station,the advantages and disadvantages of the two methods in shallow shaft excavation are summarized,and it is recommended to select full-section one-time extended control method to guarantee construction period and save cost.

关 键 词：梅蓄电站 上下库闸门井 爆破开挖 方法比选 浅竖井 

分 类 号：TV554.1[水利工程—水利水电工程]